In gnuplot, I can put the key outside the plots using this command:
set key outside;
set key right top;
But as this page indicates, the placement of the key will automatically resize the plot area such that the size of the resulting image remains the same. Is there an easy way of keeping the plot area the same no matter where I place the key outside the plot area?
The size of the plot in units of the canvas size is set with the "set size" command. But
the key is considered part of the plot, so the actual graph will always shrink when you use "set key outside", so that the graph + key obey the size that you set with "set size".
What you need to do is first make room for the key by shrinking the plot horizontally, say by "set size .75, 1". Then position the key manually. Rather than saying "set key outside", try "set key at x,y", where x and y are in your axes units. The value of x will be some margin + key length + x-axis length, and the value of y will be somewhat less than the top of your y-axis. You will want to experiment a little to get the placement that you like, but you will find that the graph size does not change as you move the key around using this command.
Old question but an easy solution is to simply set a rmargin and place the legend inside it. Example:
f(x) = x
g(x) = x**2
set multiplot layout 2,1
set rmargin 30
set key at screen 1, graph 1
plot f(x) title "Legend 1 blablabla"
plot g(x) title "Legend 2"
unset multiplot
You only need the margin to be big enough for your legend. Default unit is the character width.
Related
I have a plot with 50 categories(states) that show on my X axis, but in my output they are on top of each other. I want my plot to be spread out engough/large enough that there is no overlap and you could determine the state value from the next.
NOTE: i used the coord_flip command, so I know that my X-axis is actually my Y in image and vice versa. I am just wondering what function I would use to fix problem.
You can always change the size of the text via themes(axis.text.x=element_text(size=...))...
But the easy answer here is that your plot will change appearance based on the aspect ratio. When you view in Rstudio, you can adjust the size of your plot and you'll see the rearrangement. Additionally, when you save, the plot, play around in particular to the height and width to get the ratio you want. ggsave('filename.png', width=??, height=??).
Can you tell us how to make the chart with all headings and captions fit into the fixed vertical size and the horizontal size is floating?
If I set small fixed image sizes, some axes captions disappear, and if I set large fixed image sizes, then there is an empty space on the sides.
And I want you to be able to specify the height of the image and gnuplot will determine for itself what its width must be to fit everything you need.
For example (margin - empty space, but on the right, the inscription didn't fit:
set terminal pngcairo notransparent enhanced font "Calibri, 15" fontscale 1.0 size 800, 800; set zeroaxis;
Apparently, gnuplot does not automatically provide enough space for long numbers in the colorbox.
Since you have a logarithmic scale from 0.0000001 to 0.1, you might want to consider to display your numbers in a different format, i.e. from 10^-7 to 10^-1.
Code:
### no long numbers in colorbox
reset session
set colorbox
set palette rgb 33,13,10
set xrange [-7:-1]
set cbrange [1e-7:0.1]
set logscale cb
set format cb "10^{%T}"
plot '+' u 1:1:(10**$1) w l lw 3 palette z notitle
### end of code
Result:
I want to have a multiplot in scilab with a separate legend in each subplot. What I get so far is this:
I get that the Legend entity is a child of the axis entity of the figure entity. What I don't know is how to adjust the size so that all plots and all legends are the same width. I only see the entries for position etc. if I go for figure.children(1).children(1). How do I access the legend size? Thanks!
I don't know either how to change directly the size of the legend: it seems to me, that it is always automatically calculated based on the length of the text. But there is a solution to get equally sized plots: you can set the size of the plot by the margins property of the axes. The second number adjusts the size of the "empty" space on the right hand side:
x=1:0.1:6; //generate some data
y=[sin(x);sin(2*x)];
scf(0); clf(0);
subplot(2,1,1);
plot2d(x',y');
a=gca(); //get the current axes
a.margins=[0.05,0.2,0.125,0.125]; //set the margins
legend("y1","y2",-1,%T);
subplot(2,1,2);
plot2d(x',y');
a=gca(); //get the current axes
a.margins=[0.05,0.2,0.125,0.125]; //set the same margins to get equally sized plots
legend("y___1","y____2",-1,%T);
The help says:
A vector [margin_left,margin_right,margin_top,margin_bottom] specifying the margins portion for this axes. This vector is composed of numbers between [0 1] with default: [0.125 0.125 0.125 0.125]. These numbers are ratios relative to associated values of the axes_bounds property, which are width for margin_left and margin_right, and height for margin_top and margin_bottom.
Okay I have been working with gnuplot for sometime and have one question. I cannot make the plot size equal to the terminal size I set it to. There are examples of setting
Lmargin,rmargin, tmargin and bmargin to 0 but this doesn't work on 'splot' which is 3d plotting. So I want to know what is the workaround for it?
For color maps you can use plot ... with image instead of set pm3d map if you want to use the margin options as usual. For 3d plots, as you say, the margin options are not available, and a workaround would be to shift the position of your graph and scale it. To do that, use set origin and set size respectively.
For instance, splot x*y yields the following:
If you want to reduce the margins while keeping the same overall terminal size, you can try:
set origin -0.1,-0.1
set size 1.2,1.2
splot x*y
which gives you:
You probably get the idea. Note I set a background color just so you can visualize where the margins lie because of the white background in the Stack Overflow website.
I use the following gnuplot script in order to plot a data file
reset
unset key
set size 1,1
set xrange [-10.1:11]
set yrange [-45:45]
set xlabel 'x'
set lmargin 6
set label 1 "~x{0.7.}" font "Helvetica, 20" at graph -0.1, graph 0.5
set xtics 2
set ytics 15
set mxtics 5
set mytics 5
plot "pss_data.dat" u 1:2 w dots lc rgb 'black'
set term postscript eps enhanced "Helvetica" 20 size 7in, 5in
set output 'plot.eps'
replot
reset
set terminal windows
quit
The exported .eps file is the following.
Well, in fact this is the corresponding .pdf file using Adobe Acrobat XI in order to make the conversion. However, the .pdf output contains not only the plot but all the unwanted black area above it! In an attempt to get rid off the white area I used the command line
epstopdf plot.eps
The output is the following
Now, the white area has been removed but the label at the y axis is also missing!
Any ideas? I want to have in a .pdf file only the plot (without the above white area) but with the label at the y axis.
Many thanks in advance.
Your bounding box may be incorrectly set. You can try using epstool on the eps you create:
epstool --bbox myeps.eps myneweps.eps
That should calculate the bounding box correctly, but give you a margin of zero. If you can't/don't want to install it, try adjusting the bounding box manually. There is a line near the top of the .eps file which looks like this:
%%BoundingBox: 50 50 554 770
The four numbers are the y offset, x offset, y max and x max of the output (in terms of margins you can think of them as top, left, bottom, right). You can try decreasing the second number (increasing the left margin) to see if that reveals your y axis label.
I would avoid the conversion all together by using one of gnuplot's pdf terminals (I like pdfcairo) and just use ylabel instead of set label 1 ... at graph.... Here's a simple script that you can modify for your purposes:
set term pdfcairo enhanced font "Helvetica,20"
set output "test.pdf"
set ylabel "~x{0.7.}" rotate by 0 #default rotation is 90
set xlabel "x"
plot sin(x)
Ultimately, what is happening with your script is that gnuplot is putting the label off of the viewable canvas. Some reason adobe still puts the label on the (converted) output, but I would assert that they are wrong in this case -- (they're essentially ignoring your bounding box). Of course, you could move/adjust the bounding box as suggested in the answer by andyras -- but I would argue that is a pretty hacky solution.